CVE-2026-82601

MEDIUM 4.3

SeaCMS err.php cross site scripting

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

A weakness has been identified in SeaCMS up to 13.6. This affects an unknown part of the file /err.php. Executing a manipulation of the argument errtxt can lead to cross site scripting. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

CWE	CWE-79 CWE-94
Vendor	n/a
Product	seacms
Published	Aug 31, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / SeaCMS

13.0 13.1 13.2 13.3 13.4 13.5 13.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/397103 vuldb.com: https://vuldb.com/vuln/397103/cti vuldb.com: https://vuldb.com/cve/CVE-2026-82601 vuldb.com: https://vuldb.com/submit/892786 github.com: https://github.com/T-Chachamaru/seacms-13.6-security-advisories/blob/a084a3e573240d54860153321df271280daec262/c-007-errtxt-reflected-xss.md

Credits

🔍 T-Chachamaru (VulDB User)